DE103664C - - Google Patents
Info
- Publication number
- DE103664C DE103664C DENDAT103664D DE103664DA DE103664C DE 103664 C DE103664 C DE 103664C DE NDAT103664 D DENDAT103664 D DE NDAT103664D DE 103664D A DE103664D A DE 103664DA DE 103664 C DE103664 C DE 103664C
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- gear wheel
- gear
- cogwheel
- attached
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 230000001960 triggered Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand vorliegender Erfindung ist eine Antriebsvorrichtung für Fahrräder, durch welche eine langsame und schnelle Gangart ermöglicht wird. Diese Vorrichtung soll speciell für Tandem-Fahrräder verwendet werden, damit das bei diesen Rädern häufig vorkommende Zerreifsen von Antriebsketten verhütet wird.The present invention is a drive device for bicycles, through which a slow and fast gait is made possible. This device is intended specifically for Tandem bicycles are used so that is common with these bikes Tearing of drive chains is prevented.
Beiliegende Zeichnung veranschaulicht die Construction der vorliegenden Erfindung durch Fig. ι in Aufsenansicht, durch Fig. 2 im Querschnitt und durch Fig. 3 in Innenansicht.The accompanying drawings illustrate the construction of the present invention Fig. Ι in external view, through FIG. 2 in cross section and through FIG. 3 in internal view.
Die Antriebsvorrichtung besteht aus dem an der Tretkurbel α gelagerten, mit Zahnrad b versehenen kleinen Kettenrad c; letzteres ist mit einer kurzen Treibkette d ausgestattet und diese mit einem zweiten kleinen Kettenrade f, welches direct an der Radnabe befestigt ist, verbunden. Am Fahrradgestell g ist eine Scheibe mit Ansatz h angebracht, auf welcher das grofse Zahnrad i leicht drehbar angeordnet ist. Im Zahnrad i liegt ein Bremsring k, dessen Schlitz / durch einen den Ring k spreizenden Bolzen m, welcher mit einem am Fahrradgestell angebrachten Gestänge η verstellt wird, je nach Bedarf gebremst bezw. gelöst wird. ■Oberhalb an der Tretkurbel α befindet sich ein Sperrriegel 0, durch welchen das mit dem Zahnrad b verbundene Sperrrad festgestellt wird. Damit der Sperrriegel 0 stets im Sperrrad ρ festsitzt, ist derselbe mit einer Feder versehen.The drive device consists of the small chain wheel c, which is mounted on the crank α and provided with a gear wheel b; the latter is equipped with a short drive chain d and this is connected to a second small chain wheel f, which is attached directly to the wheel hub. On the bicycle frame g there is a disc with a shoulder h on which the large gear wheel i can be easily rotated. A brake ring k is located in the gear wheel i , the slot / of which is braked or braked by a bolt m which spreads the ring k and which is adjusted with a linkage η attached to the bicycle frame. is resolved. ■ Above the crank α there is a locking bolt 0, through which the ratchet wheel connected to gear b is locked. So that the locking bar 0 is always stuck in the ratchet wheel ρ , it is provided with a spring.
Die Wirkungsweise ist folgende: Angenommen, dafs das Zahnrad i durch den Bremsring k festgehalten wird, dreht sich das kleine Zahnrad b auf demselben so viel mal um sich selbst (das Kettenrad c, welches mit der Radnabe verbunden ist, mitnehmend), als es in dem grofsen Zahnrad i enthalten ist. Ist nun der Bremsring k ausgelöst, so wird das Zahnrad i mit herumgedreht, und die Uebertragung auf das Kettenrad f erfolgt nur durch das kleine Rad b, wodurch eine geringe Fahrgeschwindigkeit erzielt wird. Will man wiederum eine grofse Geschwindigkeit erreichen, so mufs das lose Zahnrad i durch den Bremsring k festgestellt werden, wodurch das kleine Zahnrad b durch den feststehenden Zahnkranz eine grofse Geschwindigkeit erhält.The mode of operation is as follows: Assuming that the toothed wheel i is held by the brake ring k , the small toothed wheel b rotates around itself on it as many times (driving the chain wheel c, which is connected to the wheel hub), as it does in the big gear i is included. If the brake ring k is now triggered, the gear wheel i is rotated with it, and the transmission to the chain wheel f takes place only through the small wheel b, whereby a low driving speed is achieved. If one wants to achieve a great speed again, the loose gear wheel i must be fixed by the brake ring k , whereby the small gear wheel b receives a great speed through the fixed gear rim.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE103664C true DE103664C (en) |
Family
ID=374131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT103664D Active DE103664C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE103664C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2689589A1 (en) * | 1991-02-01 | 1993-10-08 | Falise Maurice | Variable speed device for propulsion of bicycles - comprising input, output couplings, first gearing element, second wheel element also a gearing element in form of chain, regulator part to control speed |
-
0
- DE DENDAT103664D patent/DE103664C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2689589A1 (en) * | 1991-02-01 | 1993-10-08 | Falise Maurice | Variable speed device for propulsion of bicycles - comprising input, output couplings, first gearing element, second wheel element also a gearing element in form of chain, regulator part to control speed |
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